package com.xiexie.seckill.utils;


import org.apache.commons.codec.digest.DigestUtils;

/**
 * md5 工具类
 *
 * @author xie
 * @version 1.0
 * @date 2021/7/30 - 15:52
 */
public class MD5Util {

    public static String md5(String src) {
        return DigestUtils.md5Hex(src);
    }

    private static final String salt = "1a2b3c4d";

    public static String inputPassToFromPass(String inputPass) {
        String str = "" + salt.charAt(0) + salt.charAt(2) + inputPass + salt.charAt(5) + salt.charAt(4);
        return md5(str);
    }

    public static String fromPassToDBPass(String fromPass, String salt) {
        String str = "" + salt.charAt(0) + salt.charAt(2) + fromPass + salt.charAt(5) + salt.charAt(4);
        return md5(str);
    }

    public static String inputPassToDBPass(String inputPass, String salt) {
        String fromPass = inputPassToFromPass(inputPass);
        String dbPass = fromPassToDBPass(fromPass, salt);
        return dbPass;
    }

    public static void main(String[] args) {
        System.out.println(inputPassToFromPass("123456"));
        System.out.println(fromPassToDBPass("d3b1294a61a07da9b49b6e22b2cbd7f9", salt));
        System.out.println(inputPassToDBPass("123456", salt));
    }
}
